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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 13
36.
Pick out the wrong statement.
Cold cracking of a weld is due to the presence of hydrogen gas in the weld.
True stress is given by, σ = σE (1 + εE), where σE and εE are engineering stress and engineering strain respectively.
Phosphorous can be easily recovered in the iron blast furnace.
High residual stress at the surface is beneficial for fatigue properties of a material.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Shampoos are commercially not available in the form of
powder
gaseous mixture
solution
emulsion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its
aqueous tension.
saturated humidity.
vapor pressure.
absolute humidity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Carbon is present in the form of __________ in grey cast iron.
spheroids
nodular aggregates of graphite
flakes
cementite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following :
Jet of water at high pressure.
Blast of air.
Mixture of water and air.
Rain of molten lead.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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